Skip to content
37

vitamin d 4000

Skip it

Soft demand (-40.0% this quarter) — this niche doesn't clear our bar today.

Market size 15Growth 5Conversion 93Competition 17Returns 100Price range 44Avg price 68Brand share 28Review moat 23Quality gap 24

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Conversion

Great11.5%

search→purchase rate — share of searches ending in a sale

Avg price

Good€14.17

avg listing price — sweet spot $15–$100

Price range

Okay€6.71–€21.55

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad7,357.54

avg incumbent reviews — the moat a new listing must climb

Competition

Bad80%

top-5 click share — a locked-up shelf

Market size

Bad€60K

€60K/yr · 37K searches

Growth

Bad-40.0%

90-day search growth — must beat 0% to launch

Competition

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 rising

Sellers

17

Top-5 brand share

88%

Open market

8%

  • WeightWorld42%
  • Bloom Naturals Beauty Supplements30%
  • natural elements6%
  • SEVENS NUTRITION6%
  • Dekristolvit5%
  • 43%
  • Open — no brand owns it (4 brands, 8%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%€6K20%€12K30%€18K40%€24K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 33 weeks — -40.0% search growth over the last 90 days.
1K750Spike '26Nov '25Dec '25Feb '26Mar '26Apr '26May '26Jun '26

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Qualität insgesamt23%

“Bestes Produkt”

Vitamin14%

“Vitamin”

Dosierung12%

“Es sind noch viele Tabletten in der Dose”

Preis-Leistungs-Verhältnis9%

“Super Preis/Leistung”

Benutzerfreundlichkeit5%

“Beste Handhabung schnell und einfach”

beworben Vs Tatsächliches Produkt5%

“Das Produkt entspricht genau der Beschreibung”

Einfaches Kauen/Schlucken4%

“Gut schlucken”

Geschmack insgesamt4%

“Schmackhaft”

Gesamtgröße2%

“Passt”

Inhaltsstoffe – insgesamt2%

“Bei diesem Produkt von natural elements gefällt mir vor allem die einfache Dosierung und die Depot-Variante”

What buyers complain about

Vitamin13%

“Fraglich ohne vitamin k”

Dosierung9%

“1 Tropfen am Tag”

Funktionalität insgesamt8%

“Wirken tut da nix”

Haltbarkeit4%

“fragwürdige Haltbarkeitsangabe”

Messung / Ablesegenauigkeit3%

“Das beeinträchtigt die Genauigkeit der Pipette”

Qualität insgesamt3%

“quality not good”

Auslaufsicher3%

“Schraubverschluss leider undicht”

Gesamtgröße3%

“Tabletten sind klein”

Preis-Leistungs-Verhältnis3%

“Könnten etwas preiswerter sein”

Geschmack insgesamt3%

“Die Tropfen,sind geschmacksneutral”